I recently purchased the Rega DAC and really really pleased with the results in my system and can't do without it now.

However, the first time I switched on the power button got jammed and did not release. Hence to turn on/off I have to pull plug.
My dealer re-ordered and I swapped.

Now, I unpacked new DAC last night and heard a loose screw or something inside the case jangling around. FFS! Am I just very unlucky or have other owner had similar issues?
Rega gear I have seen has looked and felt very robust so am surprised by my experience.